I'll correct myself. > Psycopg is GPL, DCOracle2 is ZPL. As Federico said everything under ZPsycopgDA may be GPL or ZPL. I've used pool.py and pool_base.py. First is from ZPsycopgDA, latter not (but it is used by pool.py). Seems that is only possible to use GPL here, right? -- Maciej Wisniowski